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Pyrolysis gasoline or pygas is a naphtha-range product with high aromatics content. [1] It is a by-product of high temperature naphtha cracking during ethylene and propylene production, a high octane number mixture that contains aromatics from the aromatization reactions, olefins , and paraffins ranging from C5s to C12s.
Illustrating inputs and outputs of methane pyrolysis, an efficient one-step process to produce Hydrogen and no greenhouse gas. Methane pyrolysis [40] is an industrial process for "turquoise" hydrogen production from methane by removing solid carbon from natural gas. [41]
Pyrolysis GC/MS chromatogram of mahogany wood analyzed with OpenChrom. Pyrolysis–gas chromatography–mass spectrometry is a method of chemical analysis in which the sample is heated to decomposition to produce smaller molecules that are separated by gas chromatography and detected using mass spectrometry. [1] [2]
To determine both the concentration and kinds of plastic in the samples, the team visually inspected the samples and applied pyrolysis-gas chromatography–mass spectrometry — a technique that ...
The bottom stream from the debutanizer (light pyrolysis gasoline) consists of everything in the cracked gas stream that is C5 or heavier. Since ethylene production is energy intensive, much effort has been dedicated to recovering heat from the gas leaving the furnaces.
Typical product streams include pyrolysis gasoline (pygas) and BTX. A higher cracking temperature (also referred to as severity) favors the production of ethylene and benzene , whereas lower severity produces higher amounts of propylene , C4-hydrocarbons and liquid products.
Another process for producing BTX aromatics involves the steam cracking of hydrocarbons which typically produces a cracked naphtha product commonly referred to as pyrolysis gasoline, pyrolysis gas or pygas. The pyrolysis gasoline typically consists of C 6 to C 8 aromatics, heavier aromatics containing 9 to 12 carbon atoms, and non-aromatic ...
Oil shale gas is produced by retorting (pyrolysis) of oil shale. In the pyrolysis process, oil shale is heated until its kerogen decomposes into vapors of a petroleum-like condensable shale oil, non-condensable combustible oil shale gas, and spent shale—a solid residue. [2]
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